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公开(公告)号：US20250135392A1
公开(公告)日：2025-05-01
申请号：US18691472
申请日：2022-09-16
Applicant: Eastman Chemical Company
Inventor： Xianchun Wu , Avery L. Anderson , Daryl Bitting , Michael Gary Polasek , David Eugene Slivensky
Abstract: A process and system for recovering a recycle content carbon dioxide is provided that can lower the carbon footprint and global warming potential of a chemical recycling facility. More particularly, a pyrolysis gas from waste plastic pyrolysis may be treated in an absorber system to thereby form a recovered CO2 stream comprising recycle content carbon dioxide. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the carbon dioxide recovery process and system herein.
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公开(公告)号：US20250122431A1
公开(公告)日：2025-04-17
申请号：US18988373
申请日：2024-12-19
Applicant: Eastman Chemical Company
Inventor： Daryl Bitting , Kenny Randolph Parker , Michael Gary Polasek , David Eugene Sllivensky , Xianchun Wu , Jerome Leonard Stavinoha, JR.
Abstract: Recycle content pyoil is cracked in a cracker furnace to make olefins and the coil outlet temperature of the r-pyoil fed coils can be lowered by adding r-pyoil to the cracker feedstock, or alternatively, the coil outlet temperature of the r-pyoil fed tubes can rise if the mass flow rates of the combined cracker stream containing r-pyoil are kept the same or lowered. Further, increasing the hydrocarbon mass flow rate by addition of r-pyoil can be achieved to also increase the output of ethylene and propylene in the cracker effluent. The cracker furnace can accept ethane and/or propane feedstocks in vapor form along with a liquid and/or vapor feed of r-pyoil.
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公开(公告)号：US20240409820A1
公开(公告)日：2024-12-12
申请号：US18691643
申请日：2022-09-16
Applicant: Eastman Chemical Company
Inventor： David Eugene Slivensky , Daryl Bitting , Michael Gary Polasek , Xianchun Wu
Abstract: Processes and facilities for recovering and purifying a pyrolysis gas formed by pyrolyzing waste plastic are provided. The purification process may comprise one or more treatment processes, including a caustic scrubber process, which may be included in a cracker facility or separate from the cracker facility. The resulting gas effluent stream from the caustic scrubber is particularly useful for recovering recycled chemical products and co-products from a downstream cryogenic separation process.
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4.发明申请公开(公告)号：US20240400906A1
公开(公告)日：2024-12-05
申请号：US18691088
申请日：2022-09-16
Applicant: Eastman Chemical Company
Inventor： Daryl Bitting , David Eugene Slivensky , Xianchun Wu , Avery L. Anderson
Abstract: A heat integration process and system for a chemical recycling facility is provided that can lower the carbon footprint and global warming potential of the facility. More particularly, one or more heat transfer media may be used to recover heat energy from a waste plastic pyrolysis effluent and redistribute the recovered heat energy throughout the chemical recycling facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the heat integration process and system herein.
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公开(公告)号：US20240399289A1
公开(公告)日：2024-12-05
申请号：US18691481
申请日：2022-09-16
Applicant: EASTMAN CHEMICAL COMPANY
Inventor： David Eugene Slivensky , Daryl Bitting , Michael Gary Polasek , Xianchun Wu
Abstract: Processes and facilities for recovering and purifying a pyrolysis gas formed by pyrolyzing waste plastic are provided. An absorber-stripper system may be used to treat the pyrolysis gas for use in one or more downstream chemical recycling processes, which can be used in forming a variety of recycled content products.
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Patent Agency Ranking
公开(公告)号：US20240375321A1
公开(公告)日：2024-11-14
申请号：US18692904
申请日：2022-09-16
Applicant: Eastman Chemical Company
Inventor： Avery L. Anderson , Daryl Bitting , Michael Gary Polasek , David Eugene Slivensky , Xianchun Wu
Abstract: Various processes and configuration are provided for a chemical recycling facility that can lower the carbon footprint and global warming potential of the facility. More particularly, we have discovered numerous ways for reducing the carbon footprint of the facility by: (i) recycling at least a portion of the residual heat energy from the pyrolysis effluent back upstream to the pyrolysis process and waste plastic liquification stage; (ii) recovering at least a portion of the carbon dioxide from at least a portion of the pyrolysis flue gas and/or the pyrolysis gas; (iii) feeding at least a portion of the pyrolysis gas at a cracker facility at a position downstream of a cracker furnace; (iv) using at least a portion of a demethanizer overhead stream as a fuel in a pyrolysis facility and/or a cracking facility; and (v) providing a chemical recycling facility that contains a pyrolysis facility co-located with a cracking facility. Thus, the global warming potential of the chemical recycling facility may be optimized and lowered due to the processes and configurations described herein.
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公开(公告)号：US20240368485A1
公开(公告)日：2024-11-07
申请号：US18691085
申请日：2022-09-16
Applicant: Eastman Chemical Company
Inventor： Xianchun Wu , Daryl Bitting , David Eugene Slivensky , Michael Gary Polasek , Avery L. Anderson
Abstract: Processes and facilities for providing recycled content hydrocarbon products (r-products) from the pyrolysis of waste plastic are provided. Processing schemes are described herein that increase energy efficiency and help reduce overall environmental impact while producing valuable final products from chemically recycled waste plastic. Use of recycled content and/or high hydrogen content fuel in one or more process furnaces also reduces global warming potential of the facility by reducing carbon emissions, while also improving energy integration.
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公开(公告)号：US20240262767A1
公开(公告)日：2024-08-08
申请号：US18567801
申请日：2022-06-08
Applicant: Eastman Chemical Company
Inventor： Daryl Bitting , David Eugene Slivensky , Xianchun Wu
IPC: C07C29/141 , C07C4/02 , C07C29/151 , C07C45/50 , C07C45/64
CPC classification number: C07C29/141 , C07C4/02 , C07C29/1516 , C07C45/50 , C07C45/64
Abstract: Recycled content neopentyl glycol (r-NPG) is produced using a process and system that applies physical and/or credit-based recycled content from one or more feed materials to the NRG produced from the feed materials.
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公开(公告)号：US20240228888A1
公开(公告)日：2024-07-11
申请号：US18610557
申请日：2024-03-20
Applicant: Eastman Chemical Company
Inventor： Daryl Bitting , Kenny Randolph Parker , Michael Gary Polasek , David Eugene Slivensky , Xianchun Wu , Jerome Leonard Stavinoha, JR.
CPC classification number: C10G3/40 , C10G1/10 , C10G2300/1003 , C10G2300/301 , C10G2400/20 , C10G2400/22
Abstract: A hydrocarbon cracker stream is combined with recycle content pyrolysis oil to form a combined cracker stream and the combined cracker stream is cracked in a cracker furnace to provide an olefin-containing effluent. The r-pyoil can be fed to the cracker feed. More specifically the-pyoil is present in said feedstock in an amount of not more than 20% by weight, based on the total weight of the feedstock.
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公开(公告)号：US20240218258A1
公开(公告)日：2024-07-04
申请号：US18610459
申请日：2024-03-20
Applicant: Eastman Chemical Company
Inventor： Daryl Bitting , Kenny Randolph Parker , Michael Gary Polasek , David Eugene Slivensky , Xianchun Wu
CPC classification number: C10G1/10 , B01J6/008 , C10G1/002 , C10G2300/1003 , C10G2300/301 , C10G2400/20
Abstract: Processes and systems for making recycle content hydrocarbons, including olefins, from recycled waste material. Recycle waste material may be pyrolyzed to form recycle content pyrolysis oil composition (r-pyoil), at least a portion of which may then be cracked to form a recycle content olefin composition (r-olefin). In some cases, the pyrolysis and cracking may be carried out in different sections of the same furnace, or in different furnaces in the same cracker facility. Pyrolysis conducted in a furnace may or may not require retrofitting a furnace previously used to crack alkanes to form olefins.
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